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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
What is the single-tailed test? |
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Answer» A single-tailed test or a one-tailed test is a statistical test in which the critical area of a distribution is onesided so that it is either greater than or less than a certain value, but not both. For the null hypothesis H0: µ = 16.91, the alternative hypothesis H1: µ > 16.91 or H1: µ < 16.91 are one-tailed tests. |
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| 52. |
An estimate of a population parameter given by two numbers between which the parameter would be expected to lie is called an _______ interval estimate of the parameter.(a) point estimate (b) interval estimation (c) standard error (d) confidence |
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Answer» (b) interval estimation |
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| 53. |
What is an estimate? |
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Answer» Any specific numerical value of the estimator is called an estimate. For example, sample means are used to estimate population means. |
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| 54. |
What is point estimation? |
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Answer» Point estimation involves the use of sample data to calculate a single value which is to serve as the best estimate of an unknown population parameter. For example, the mean height of 145 cm from a sample of 15 students is‘a point estimate for the mean height of the class of 100 students. |
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| 55. |
What is interval estimation? |
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Answer» Interval estimation is the use of sample data to calculate an interval of possible values of an unknown population parameter. For example, the interval estimate for the population mean is (101.01, 102.63). This gives a range within which the population means is most likely to be located. |
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